Multiple Choice
An article describes the results of an experiment. Patients suffering from chronic somatic diseases were randomly assigned to the two groups. One group was a control group of patients who received treatment A. Of the 58 patients in this group, 9 reported improvements at the end of the study period. Patients in the second group received treatment B. Of the 33 patients in this group, 4 reported improvements at the end of the study period.
Do these data provide evidence that the proportion of success for patients who received treatment A differs from the proportion of success for patients who received treatment B? Use a randomization test to select the appropriate output for one set of 1000 simulated proportions and carry out a hypothesis test for a difference in proportions. Use a significance level of 0.05.
A)
The approximate
-value is 0.316.Since it is lower than
, we reject
for a significance level of 0.05 .There is significant difference between the proportion of success for patients who received treatment A and the proportion of success for patients who received treatment B.
B)
The approximate
-value is 0.655.Since it is greater than
, we fail to reject
for a significance level of 0.05.There is not convincing evidence that there is difference between the proportion of success for patients who received treatment A and the proportion of success for patients who received treatment B.
C)
The approximate -value is 0.345.Since it is greater than
, we reject
for a significance level of 0.05.There is significant difference between the proportion of success fot patients who received treatment A and the proportion of success for patients who received treatment B.
D)
The approximate -value is 0.034.Since it is lower than
, we reject
for a significance level of 0.05.There is significant difference between the proportion of success for patients who received treatment A and the proportion of success for patients who received treatment B.
E)
The approximate -value is 0.966.Since it is greater than
, we reject for a significance level of 0.05 .There is not convincing evidence that there is difference between the proportion of success for patients who received treatment A and the proportion of success for patients who received treatment B.
Correct Answer:

Verified
Correct Answer:
Verified
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